On 26.06.2021 15:35, Dylan Fernando wrote:
I can't seem to be able to use exp() and sqrt() in CUDA.I get: NVCC libavfilter/try_cuda.ptx clang-11: warning: Unknown CUDA version. cuda.h: CUDA_VERSION=11030. Assuming the latest supported version 10.1 [-Wunknown-cuda-version] libavfilter/try_cuda.cu:39:19: error: use of undeclared identifier 'exp' float g = exp(f);
Is this using enable-cuda-llvm? If so, you will need to add any new functions to our compat layer in compat/cuda/cuda_runtime.h.
Also, where does this cuda.h error come from? Are you including that in your cuda file? If so, don't. It's not license compatible with ffmpeg.
For development of filters, I usually use actual CUDA nvcc, since it also supports greater debugging features, and then in the end solve any compatibility issues with a clang build.
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